Question

I have a bash script in which i check the exit code of a last run command by using $? variable but now I am executing a C program (from that script) which returns 0 if the program gets executed successfully. Is there any way I can catch this return value of the C program from with in my bash script?

I believe different commands like awk, sed etc are written in C. How do they use $? to store their exit codes in it? How can I make my C program to store its exit code in $??

I hope my question is clear.

Answer 1

There’s no need to do anything – if your C program returns 0, that’s what will be stored in the $? variable of the shell that executed it.